Gila Monster
http://en.wikipedia.org/wiki/Gila_monster
http://www.desertusa.com/sep97/du_gilamonster.html
http://www.sandiegozoo.org/animalbytes/t-gila_monster.html
http://www.kingsnake.com/rockymountain/RMHPages/RMHgila.htm
http://www.desertmuseum.org/books/nhsd_gila.php